These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Fridge Logic: In Point of Impact, Drayne shoots a bodyguard in the back of the head while Tad is driving, from the back seat. Minutes later, at a checkpoint-turned-standoff, he convinces Tad to fire the gun into the air and then muses that he can get off scot-free by claiming Tad shot the dead man in the seat next to him now that Tad has gunshot residue on his hands. But wouldn't any of the dozens of federal agents remember that Tad was driving the car, and therefore couldn't be the one who shot him from the back seat where Drayne had been sitting?
Harsher in Hindsight: Jay frequently secretly hacks his way into private databases during an investigation, often pointing out that the evidence he obtained wasn't legal and couldn't be used in court, but was still important for informative reasons. These books were written in the late 90s and early 2000s, but are set in the early 2010s, the era of Snowden and PRISM and widespread accusations of the NSA doing that exact thing.
Life Imitates Art: In 1999 when the "virgil" cell phone was described, it seemed wonderful and sci-fi. By 2010 when the first book is actually set, almost everyone has a smartphone that is remarkably close to what is described - a flatscreen LCD touchscreen device a little bigger than a pack of cigarettes, that contains a camera, radio, modem/router, GPS device, TV, internet connection, and other features smartphones actually have.
Magnificent Bastard: Several of the villains. The standard format of all the Net Force books is a Magnificent Bastard working behind the scenes through one or sometimes two Dragons who are more military-minded such as assassins, soldiers, thugs, or spies.
Nightmare Fuel: Jay goes into a coma. He then realizes it's a coma (mostly due to years of experience visualizing non-real surroundings as a VR programmer), turning it into a lucid dream he can't wake up from...
Strawman Has a Point: Tyrone actually makes some good points about the flaws in intellectual property enforcement.
Drayne makes some good points on drug legalization, too. He'd probably have been relatively well-off if a rogue NSA agent hadn't murdered him.
Technology Marches On: At one point, a character refers to beepers as though they're still in common use instead of cell phones. All the main characters have smartphones, but they're implied to be highly expensive and in the main cast's case, government-issued. The series is set in the 2010s.